tzdb_list class
A list of time zone databases.
Syntax
class tzdb_list; // C++20
Remarks
You can't construct a tzdb_list. To get one, call get_tzdb_list().
You can't use copy assignment with a tzdb_list as operator= is deleted.
tzdb_list is a singleton.
Member functions
| Function | Description |
|---|---|
begin, cbegin |
Get an iterator to the start of the list of tzdb objects. |
end, cend |
Get an iterator past the end of the list of tzdb objects. |
erase_after |
Erase the tzdb that immediately follows the element pointed to by the passed in iterator. |
front |
Get the first element in the list of tzdb objects. |
Member types
| Member type | Description |
|---|---|
class const_iterator |
A constant iterator of type tzdb. |
begin, cbegin
Gets an iterator that points to the start of the list.
const_iterator begin() const noexcept; // C++20
const_iterator cbegin() const noexcept; // C++20
Return value
An iterator pointing to the first tzdb in the list.
end, cend
Get an iterator past the end of the list.
const_iterator end() const noexcept; // C++20
const_iterator cend() const noexcept; // C++20)
Return value
An iterator pointing past the end of the last tzdb in the list.
Remarks
Because the returned iterator points past the end of the list, it shouldn't be dereferenced. Instead, use it to compare when you've reached the end of the list.
front
Gets the first tzdb in the list.
const tzdb& front() const noexcept; // C++20
Return value
The first time zone database in the list.
Remarks
You can simultaneously call this function and reload_tzdb without risk of a race condition.
erase_after
Erase the tzdb that follows the element pointed to by the passed-in iterator.
const_iterator erase_after(const_iterator p);
Parameters
p
An iterator that points to the element before the one to erase.
Return value
An iterator following the erased tzdb. If there isn't an element following the erased tzdb, then end()
Remarks
It isn't possible to erase the first element in the list.
Requirements
Header: <chrono>
Namespace: std::chrono
Compiler Option: /std:c++latest